Skip to content

Bacterial vaginosis (BV)

Bacterial vaginosis (BV) is a common cause of unusual vaginal discharge. BV is not a sexually transmitted infection (STI), but it can increase your risk of getting an STI such as chlamydia.

  • BV is common, around 1 in 3 people with a vagina will get it at some point in their lives
  • BV can be more common if you use perfumed soaps or shower gel and use strong detergents to wash your underwear (see our genital hygiene tips)

Symptoms of bacterial vaginosis BV include:

  • an unusual vaginal discharge that has a strong fishy smell, particularly after sex
  • a change to the colour and consistency of discharge, such as becoming greyish-white and thin and watery

Half of those with BV do not have any symptoms.

BV does not usually cause any soreness or itching.

Testing is available for BV at GPs and sexual health clinics.

This may involve taking sample of your discharge using a swab (like a cotton bud)

You may also be tested for STIs.

BV is usually treated with antibiotic tablets or gels or creams.

These can be prescribed by a GP or sexual health clinic.

You can find your nearest GP or sexual health clinic using our find a service tool.

More information

Emergency

If your local GP or sexual health clinic is closed or you need to access help or medication over a weekend, emergency information is available here:

Emergency Contraception HIV PEP SEXUAL ASSAULT ABORTION